Abstract

Noise suppression in an interferometer, employing a nonlinear Mach-Zehnder squeezer, was proposed^[1] and experimentally confirmed^[2,3]. The noise characteristics of this squeezer were derived for a coherent state input^[4]. It may be advantageous to put the squeezer directly into a modelocked laser resonator where higher power pulses may be utilized. In this case the light acquires a large phase uncertainty. Thus, it is of interest to analyze squeezing with an input state of large phase uncertainty. One approach is to expand the input state in terms of coherent states^[5]. Another approach is to use number states, which have total phase uncertainty and also present some interesting quantum features.

© 1993 Optical Society of America